content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * ----------------
   * PaintSample.java
   * ----------------
   * (C) Copyright 2000-2012, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes (from 26-Oct-2001)
   * --------------------------
   * 26-Oct-2001 : Changed package to com.jrefinery.ui.*;
   * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
   * 17-Jun-2012 : Moved from JCommon to JFreeChart (DG);
   *
   */
  
  package org.jfree.chart.ui;
  
  import java.awt.Color;
  import java.awt.Dimension;
  import java.awt.Graphics;
  import java.awt.Graphics2D;
  import java.awt.Insets;
  import java.awt.Paint;
  import java.awt.geom.Rectangle2D;
  
  import javax.swing.JComponent;
  
  /**
   * A panel that displays a paint sample.
   */
  public class PaintSample extends JComponent {
  
      /** The paint. */
      private Paint paint;
  
      /** The preferred size of the component. */
      private Dimension preferredSize;
  
      /**
       * Standard constructor - builds a paint sample.
       *
       * @param paint   the paint to display.
       */
      public PaintSample(final Paint paint) {
          this.paint = paint;
          this.preferredSize = new Dimension(80, 12);
      }
  
      /**
       * Returns the current Paint object being displayed in the panel.
       *
       * @return the paint.
       */
      public Paint getPaint() {
          return this.paint;
      }
  
      /**
       * Sets the Paint object being displayed in the panel.
       *
       * @param paint  the paint.
       */
      public void setPaint(final Paint paint) {
          this.paint = paint;
          repaint();
      }
  
      /**
       * Returns the preferred size of the component.
       *
       * @return the preferred size.
       */
      @Override
      public Dimension getPreferredSize() {
          return this.preferredSize;
      }
  
      /**
       * Fills the component with the current Paint.
       *
       * @param g  the graphics device.
       */
      @Override
      public void paintComponent(final Graphics g) {
  
          final Graphics2D g2 = (Graphics2D) g;
          final Dimension size = getSize();
          final Insets insets = getInsets();
          final double xx = insets.left;
          final double yy = insets.top;
          final double ww = size.getWidth() - insets.left - insets.right - 1;
          final double hh = size.getHeight() - insets.top - insets.bottom - 1;
          final Rectangle2D area = new Rectangle2D.Double(xx, yy, ww, hh);
          g2.setPaint(this.paint);
          g2.fill(area);
          g2.setPaint(Color.BLACK);
          g2.draw(area);
  
      }
  
  }
  